建筑工程专业英语unit2

三面投影图 轴测图 透视图
Three-plane projection drawing
Three-plane projection drawing is the main pattern in the project, which can accurately reflect the shape and size of object and is convenient to chat[2]. In the ordinary circumstances, three-plane projection drawing is composed of the horizontal projection drawing, the frontal projection drawing and the pro drawing. In the analysis process of three-plane projection drawing, we are required to follow the projection relation of “equality in height, width and length”, which is the foundation of drawing and reading.
Lesson 2
The Architectural Charting Drawing Recognition and Fundamentals of
CAD----ComputeCr AAiDded Design
The Architectural Charting and DrawingRecognition
projection phenomenon three-dimensional
投影现象 三维
Three basic elements that the projection must have are the projection line, the object, the projecting plane.
（a）three-plane projection drawing
（b）axonometric drawing
Fig 2.2 Projection
（c）perspective drawing
three-plane projection drawing the axonometric drawing the perspective drawing
architectural charting and drawing recognition
建筑工程制图与识图
projection charting
投影制图
curriculum
课程
First, Projection charting The concept of projection
The projection phenomenon refers to that if a object is irradiated under the sunlight or lamplight, it will leave a shadow on the ground or on the wall. By scientifically and abstractedly summarizing the relationship between object and shadow in the long-term production practice, people sum up the method of projection. The projection is widely used to express the object in the engineering circle, so as to realize the interconvertion between three-dimensional objects and two-dimensional objects.
The primary coverage of this curriculum includes: elementary knowledge and skill of charting, projection charting and the architectural engineering plat and so on.
architectural engineerΒιβλιοθήκη Baidung plat 建筑工程图样
structure
结构，构造
construction
建设，施工
“The architectural charting and drawing recognition” is the theory and method that studies drawing and reading of the architectural engineering plat, and also is the main technological curriculum that raises senior engineering applied talents in product line for related majors.
The architectural engineering plat is one kind of the engineering plat, which is used to express the shape, size, material, structure, construction mode of the building as well as the specification and so on[1]. It is not only an important tool to express design intentions, exchange technology thoughts, but also an important technical document to instruct technical work such as production, construction, management and so on.
Fig 2.1 Projection process
Projections commonly used in the project are three-plane projection drawing, the axonometric drawing and the perspective drawing .